DESCRIPTION

The WM8988 is a low power, high quality stereo CODEC designed for portable digital audio applications. The device integrates complete interfaces to 2 stereo headphone or line out ports. External component requirements are drastically reduced as no separate headphone amplifiers are required. Advanced on-chip digital signal processing performs graphic equaliser, 3-D sound enhancement and automatic level control for the microphone or line input.

FEATURES

• DAC SNR 100dB (‘A’ weighted), THD –90dB at 48kHz, 3.3V

• ADC SNR 93dB (‘A’ weighted), THD -81dB at 48kHz, 3.3V

• Programmable ALC / Noise Gate

• 2x On-chip Headphone Drivers

- >40mW output power on 16Ω/ 3.3V

- THD –80dB at 20mW, SNR 90dB with 16Ωload

• Digital Graphic Equaliser

•Low Power

- 7mW stereo playback (1.8V / 1.5V supplies)

- 14mW record and playback (1.8V / 1.5V supplies)

• Low Supply Voltages

- Analogue 1.8V to 3.6V

- Digital core: 1.42V to 3.6V

- Digital I/O: 1.8V to 3.6V

• 256fs / 384fs or USB master clock rates: 12MHz, 24MHz

• Audio sample rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48, 88.2, 96kHz generated internally from master clock

•4x4mm COL package

APPLICATIONS

• Portable Multimedia players

•Multimedia handsets

•Handheld gaming